Diagram of the MARzss method.

The first part is the interleaved RF and gradient pulses (iPFG) train, where FA is the flip angle of each radio frequency (RF) pulse and G is the field gradient inserted between two RF pulses in the train. G is applied in the z direction. Water suppression is applied following the iPFG train. Steady state longitudinal magnetization is measured by a point-resolved spectroscopy (PRESS) sequence optimized for Glu detection at 7 Tesla.